Question UnityXR and Vive Trackers

Does anyone know how to setup the Vive Trackers with UnityXR? I tried adding an XRI Tracker action map and it has a binding for a vive tracker. I tried adding an XR Controller component and/or a tracked pose driver component to a tracker game component but it doesn't work. The tracker does not show up in the XR Interaction debugger. Thanks.

 

If I run the following code I get 0

Code (CSharp):

1. var inputDevices = new List<InputDevice>();
2. InputDevices.GetDevices(inputDevices)
3. var DevicesCount = inputDevices.Count;
4. Debug.Log(DevicesCount);